Weather Records on 1 August 1987

999 weather records were set or tied worldwide on 1 August 1987. Highest significance: Lukojanov, RU.

Key Facts for 1 August 1987

On 1 August 1987, 999 weather records were set or tied at long-record stations worldwide.
564 were record highs and 254 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 37 monthly and 960 daily.
Lukojanov set a daily record precipitation of 36.4 mm (1.4 in) on 1 August 1987.
Across 164 earlier years (1797 to 2026) the same calendar date averaged 438 records.

Record Map

999 stations

999 station records on 1 August 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 August 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Lukojanov	Russia	Record daily precipitation	36.4 mm (1.4 in)	59 of 100 (Notable)
Eureka	United States	Record daily precipitation	54.9 mm (2.2 in)	59 of 100 (Notable)
Organ Pipe Cactus Nm	United States	Record daily precipitation	50.8 mm (2.0 in)	54 of 100 (Notable)
Big Rapids Wtp	United States	Record daily precipitation	42.7 mm (1.7 in)	51 of 100 (Notable)
Glenwood	United States	Record daily precipitation	45.7 mm (1.8 in)	49 of 100 (Notable)
Sheboygan	United States	Record daily precipitation	72.1 mm (2.8 in)	49 of 100 (Notable)
Lanna	Sweden	Record daily precipitation	38.7 mm (1.5 in)	47 of 100 (Notable)
Kilagarden	Sweden	Record daily precipitation	52.8 mm (2.1 in)	47 of 100 (Notable)
Horken	Sweden	Record daily precipitation	43.3 mm (1.7 in)	46 of 100 (Notable)
Maquoketa	United States	Record high maximum temperature	39.4 C (102.9 F)	46 of 100 (Notable)
Kantunilkin	Mexico	Record low minimum temperature	10.6 C (51.1 F)	45 of 100 (Notable)
Remningstorp	Sweden	Record daily precipitation	54.6 mm (2.1 in)	45 of 100 (Notable)
Turrawan (Wallah)	Australia	Record daily precipitation	35.0 mm (1.4 in)	44 of 100 (Notable)
Ludvika	Sweden	Record daily precipitation	36.4 mm (1.4 in)	44 of 100 (Notable)
New Hampton	United States	Record high maximum temperature	37.8 C (100.0 F)	42 of 100 (Notable)
Towson	United States	Record low minimum temperature	8.3 C (46.9 F)	41 of 100 (Notable)
Bicura	Russia	Record daily precipitation	31.4 mm (1.2 in)	40 of 100 (Notable)
Orebro	Sweden	Record low maximum temperature	13.9 C (57.0 F)	40 of 100 (Notable)
Ashley	United States	Record daily precipitation	47.5 mm (1.9 in)	40 of 100 (Notable)
Miami Beach	United States	Record daily precipitation	64.3 mm (2.5 in)	40 of 100 (Notable)
Galesburg	United States	Record high minimum temperature	24.4 C (75.9 F)	39 of 100 (Notable)
Walnut	United States	Record high maximum temperature	39.4 C (102.9 F)	39 of 100 (Notable)
Clinton #1	United States	Record high maximum temperature	37.8 C (100.0 F)	39 of 100 (Notable)
Newton	United States	Record high minimum temperature	25.0 C (77.0 F)	39 of 100 (Notable)
Arlington	United States	Record low minimum temperature	8.9 C (48.0 F)	39 of 100 (Notable)
Niznij Novgorod	Russia	Record daily precipitation	26.7 mm (1.1 in)	38 of 100 (Notable)
Karlstad	Sweden	Record low maximum temperature	14.3 C (57.7 F)	38 of 100 (Notable)
Arhara	Russia	Record daily precipitation	60.5 mm (2.4 in)	37 of 100 (Notable)
Skogsforsen	Sweden	Record daily precipitation	40.7 mm (1.6 in)	37 of 100 (Notable)
Tiskilwa 2 SE	United States	Record high minimum temperature	22.2 C (72.0 F)	37 of 100 (Notable)
Tuscola	United States	Record high minimum temperature	24.4 C (75.9 F)	37 of 100 (Notable)
Forman 5 SSE	United States	Record high maximum temperature	40.0 C (104.0 F)	37 of 100 (Notable)
Chilton	United States	Record high minimum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Oconomowoc Wwtp	United States	Record high maximum temperature	35.0 C (95.0 F)	37 of 100 (Notable)
Biser	Russia	Record high minimum temperature	17.4 C (63.3 F)	36 of 100 (Notable)
Oskaloosa	United States	Record high minimum temperature	25.0 C (77.0 F)	36 of 100 (Notable)
Saint Ignatius	United States	Record low minimum temperature	3.9 C (39.0 F)	36 of 100 (Notable)
Amidon	United States	Record daily precipitation	35.6 mm (1.4 in)	36 of 100 (Notable)
Mellette 4 W	United States	Record high maximum temperature	41.7 C (107.1 F)	36 of 100 (Notable)
Washington 1 W	United States	Record daily precipitation	37.6 mm (1.5 in)	35 of 100 (Notable)
Superior	United States	Record high maximum temperature	40.6 C (105.1 F)	35 of 100 (Notable)
Lisboa Geofisica	Portugal	Record high minimum temperature	24.8 C (76.6 F)	34 of 100 (Routine)
Hjalmsater	Sweden	Record daily precipitation	43.3 mm (1.7 in)	34 of 100 (Routine)
Castle Rock	United States	Record high minimum temperature	15.6 C (60.1 F)	34 of 100 (Routine)
Fruita	United States	Record low maximum temperature	23.9 C (75.0 F)	34 of 100 (Routine)
Mason City	United States	Record high minimum temperature	25.0 C (77.0 F)	34 of 100 (Routine)
Campbell	United States	Record high maximum temperature	37.8 C (100.0 F)	34 of 100 (Routine)
Mocksville 5SE	United States	Record daily precipitation	38.9 mm (1.5 in)	34 of 100 (Routine)
Amderma	Russia	Record daily precipitation	30.4 mm (1.2 in)	33 of 100 (Routine)
Singeshult	Sweden	Record daily precipitation	36.6 mm (1.4 in)	33 of 100 (Routine)
Skara 1	Sweden	Record daily precipitation	35.4 mm (1.4 in)	33 of 100 (Routine)
Garden Valley	United States	Record low minimum temperature	2.2 C (36.0 F)	33 of 100 (Routine)
Iowa City	United States	Record high maximum temperature	38.9 C (102.0 F)	33 of 100 (Routine)
Ashland	United States	Record daily precipitation	54.9 mm (2.2 in)	33 of 100 (Routine)
Greenville 2 NNE	United States	Record daily precipitation	49.8 mm (2.0 in)	33 of 100 (Routine)
Willow City	United States	Record high minimum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
Wisconsin Rapids	United States	Record high minimum temperature	21.7 C (71.1 F)	33 of 100 (Routine)
Green Bay	United States	Record high minimum temperature	21.7 C (71.1 F)	33 of 100 (Routine)
Lindesberg	Sweden	Record daily precipitation	27.0 mm (1.1 in)	31 of 100 (Routine)
Decatur Wtp	United States	Record high maximum temperature	38.9 C (102.0 F)	31 of 100 (Routine)

Counts by Type and Timescale

999 records

Records set or tied on 1 August 1987 by type: Highest daily maximum 223, Lowest daily maximum 143, Highest daily minimum 341, Lowest daily minimum 111, Heaviest daily rainfall 181.

Records on 1 August 1987 by type
Record type	Records
Highest daily maximum	223
Lowest daily maximum	143
Highest daily minimum	341
Lowest daily minimum	111
Heaviest daily rainfall	181
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 1 August 1987 by timescale: all-time 2, monthly 37, daily 960.

How Much Records Were Beaten By

726 broken records

Margins by which the 726 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 45.0. Ties are not counted.

Top 20 by Significance

1 August 1987

Top 20 records on 1 August 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 August 1987	Lukojanov, RU	daily rain	36.4 mm (1.4 in)	28.1 mm (1.1 in)	49 years	59 of 100 (Notable)
1 August 1987	Eureka, US	daily rain	54.9 mm (2.2 in)	28.2 mm (1.1 in)	72 years	59 of 100 (Notable)
1 August 1987	Organ Pipe Cactus Nm, US	daily rain	50.8 mm (2.0 in)	45.0 mm (1.8 in)	38 years	54 of 100 (Notable)
1 August 1987	Big Rapids Wtp, US	daily rain	42.7 mm (1.7 in)	18.6 mm (0.7 in)	90 years	51 of 100 (Notable)
1 August 1987	Glenwood, US	daily rain	45.7 mm (1.8 in)	38.3 mm (1.5 in)	16 years	49 of 100 (Notable)
1 August 1987	Sheboygan, US	daily rain	72.1 mm (2.8 in)	39.1 mm (1.5 in)	36 years	49 of 100 (Notable)
1 August 1987	Lanna, SE	daily rain	38.7 mm (1.5 in)	22.2 mm (0.9 in)	25 years	47 of 100 (Notable)
1 August 1987	Kilagarden, SE	daily rain	52.8 mm (2.1 in)	28.3 mm (1.1 in)	12 years	47 of 100 (Notable)
1 August 1987	Horken, SE	daily rain	43.3 mm (1.7 in)	25.3 mm (1.0 in)	37 years	46 of 100 (Notable)
1 August 1987	Maquoketa, US	daily high max	39.4 C (102.9 F)	4.4 C (7.9 F)	89 years	46 of 100 (Notable)
1 August 1987	Kantunilkin, MX	monthly low min	10.6 C (51.1 F)	4.4 C (7.9 F)	16 years	45 of 100 (Notable)
1 August 1987	Remningstorp, SE	daily rain	54.6 mm (2.1 in)	24.1 mm (0.9 in)	25 years	45 of 100 (Notable)
1 August 1987	Turrawan (Wallah), AU	daily rain	35.0 mm (1.4 in)	21.8 mm (0.9 in)	41 years	44 of 100 (Notable)
1 August 1987	Ludvika, SE	daily rain	36.4 mm (1.4 in)	22.4 mm (0.9 in)	32 years	44 of 100 (Notable)
1 August 1987	New Hampton, US	daily high max	37.8 C (100.0 F)	3.9 C (7.0 F)	76 years	42 of 100 (Notable)
1 August 1987	Towson, US	daily low min	8.3 C (46.9 F)	3.9 C (7.0 F)	76 years	41 of 100 (Notable)
1 August 1987	Bicura, RU	daily rain	31.4 mm (1.2 in)	20.3 mm (0.8 in)	37 years	40 of 100 (Notable)
1 August 1987	Orebro, SE	daily low max	13.9 C (57.0 F)	0.1 C (0.2 F)	102 years	40 of 100 (Notable)
1 August 1987	Ashley, US	daily rain	47.5 mm (1.9 in)	8.1 mm (0.32 in)	84 years	40 of 100 (Notable)
1 August 1987	Miami Beach, US	daily rain	64.3 mm (2.5 in)	34.6 mm (1.4 in)	38 years	40 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1797 to 1987

Records set or tied on this calendar date in each year from 1797 to 1987. 1987 had 999 records.

Counts for years before the ledger starts come from the same station rules.

Records on 08-01 in each year
Year	Records
1797	1
1816	2
1829	1
1833	1
1834	2
1836	1
1838	1
1842	1
1851	1
1856	1
1858	3
1859	1
1861	1
1862	1
1863	1
1865	1
1868	1
1869	2
1873	1
1874	1
1875	3
1876	1
1878	1
1879	1
1881	3
1883	1
1886	2
1887	1
1890	1
1891	7
1892	4
1893	3
1894	1
1895	3
1896	4
1897	2
1898	3
1899	1
1900	1
1901	3
1902	5
1903	19
1904	10
1905	12
1906	18
1907	13
1908	18
1909	15
1910	30
1911	46
1912	49
1913	25
1914	17
1915	49
1916	16
1917	108
1918	55
1919	32
1920	101
1921	87
1922	44
1923	203
1924	93
1925	281
1926	252
1927	266
1928	132
1929	161
1930	252
1931	362
1932	408
1933	487
1934	448
1935	547
1936	636
1937	492
1938	523
1939	335
1940	333
1941	341
1942	388
1943	398
1944	410
1945	975
1946	336
1947	401
1948	354
1949	324
1950	552
1951	420
1952	391
1953	565
1954	462
1955	796
1956	441
1957	270
1958	389
1959	352
1960	677
1961	404
1962	602
1963	270
1964	883
1965	669
1966	383
1967	250
1968	625
1969	453
1970	482
1971	1,135
1972	609
1973	766
1974	526
1975	915
1976	886
1977	636
1978	706
1979	580
1980	906
1981	668
1982	742
1983	931
1984	532
1985	987
1986	846
1987	999
1988	880
1989	1,301
1990	927
1991	740
1992	1,024
1993	907
1994	1,217
1995	1,513
1996	1,118
1997	904
1998	1,281
1999	1,707
2000	1,020
2001	1,079
2002	1,249
2003	1,155
2004	740
2005	878
2006	1,655
2007	746
2008	795
2009	932
2010	1,182
2011	1,191
2012	850
2013	542
2014	853
2015	864
2016	499
2017	758
2018	987
2019	479
2020	838
2021	1,009
2022	915
2023	627
2024	879
2025	785
2026	1,085

Download the Data

Data for records on 1987-08-01: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Histogram of margins by which records were beaten on 1 August 1987
Margin	Records
0 to 10	666
10 to 20	42
20 to 30	12
30 to 40	5
40 to 50	1